We hide the internal data transfers using the data frames. Rename
the snd_rawmidi_framing enum to snd_rawmidi_read_mode to make
API more straight and understandable.
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
The frame structure is a bit internal thing for the kernel
data transfer implementation. Introduce snd_rawmidi_tread()
function which is straight for the application usage and hides
the framing data transfers (kernel space API).
The current code implements the read cache and does the merging
of the frame reads with the similar timestamps (opposite
to the kernel data split for big chunks).
If the application wants to use super-duper-lighting-fast reads,
the snd_rawmidi_read() may be used, but the structure must be
defined on it's own, because this mechanism is not preferred
and unsupported.
BugLink: https://github.com/alsa-project/alsa-lib/issues/172
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Adds a "clock type" parameter to the "rawmidi" test program, that when
used and combined with -i (and -v to be useful), activates tstamp type
framing with the specified clock type.
Signed-off-by: David Henningsson <coding@diwic.se>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
